Gustavus Boswell lived in Charles County, Maryland during the Revolutionary War period and later in North Carolina, Virginia, and South Carolina, finally settling in Alabama where he died after 1836. Descendants lived in North Carolina, Alabama, Mississippi, Texas, and elsewhere.

Edward Boswell, born ca 1750, could be a son to an Edward Boswell who came to America in 1635. Descendants and relatives lived in Virginia North Carolina, Tennessee, Maryland, Ohio, and elsewhere.

This "Supplement to Genealogies in the Library of Congress" lists all genealogies in the Library of Congress that were catalogued between 1972 and 1976, showing acquisitions made by the Library in the five years since publication of the original two-volume Bibliography. Arranged alphabetically by family name, it adds several thousand works to the canon, clinching the Bibliography's position as the premier finding-aid in genealogy.